Question

If 5^n x 5^3 = 5^9 what is n?

Answer 1

5^n x 5^3 = 5⁹

5(n+3) = 5⁹ {By using this a^n + a^m = a(n+m)}

n+3 = 9

n = 9-3

n = 6

Hope it helps you.